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afct-5760z and afct-5765z families of small form factor pluggable (sfp) optical transceivers for single-mode oc3/stm-1 with optional dmi part of the avago technologies metrak family data sheet description the afct-576 x z family of sfp optical transceivers for oc3 off ers the customer a range of design options, including optional dmi (further described later), extended or indus- trial temperature ranges, and standard push-button or or bail delatch. the afct-5765z family targets applications requiring dmi features, and the afct-5760z family is streamlined for those applications where dmi features are not needed. throughout this document, afct-576 x z will refer collectively to the entire product family encom- passing this range of product features. part number options the afct-576 x z family consists of the following prod- ucts: with dmi part number temperature design distance afct-5765lz extended* standard sr (2km) afct-5765pz extended* bail sr afct-5765alz industrial* standard sr afct-5765apz industrial* bail sr afct-5765tlz extended* standard ir (15km) afct-5765tpz extended* bail ir afct-5765atlz industrial* standard ir afct-5765atpz industrial* bail ir without dmi part number temperature design distance afct-5760lz extended* standard sr (2km) afct-5760pz extended* bail sr afct-5760alz industrial* standard sr afct-5760apz industrial* bail sr afct-5760tlz extended* standard ir (15km) AFCT-5760TPZ extended* bail ir afct-5760atlz industrial* standard ir afct-5760atpz industrial* bail ir * extended temperature range is -10 to 85 degrees c industrial temperature range is -40 to 85 degrees c features ? rohs compliant ? optional digital diagnostic monitoring available - afct-5760z family: without dmi - afct-5765z family: with dmi ? per sff-8472, diagnostic features on afct-5765z family enable diagnostic monitoring interface for optical transceivers with real-time monitoring of: - transmitted optical power - received optical power - laser bias current - temperature - supply voltage ? compliant with sff-8074i sfp transceiver specifi ca- tion ? compliant with itu-t g957 stm-1 i-1 (2 km), stm-1 s-1.1 (15 km) ? compliant with telcordia gr253 sr (2 km), ir-1 (15 km) ? class 1 cdrh/iec 825 eye safety compliant ? operating case temperature range C10 c to +85 c (extended) C40 c to +85 c (industrial) ? multitrate operation from 125 mb/s to 155 mb/s ? lc duplex fi ber connector ? manufactured in an iso 9001 compliant facility applications ? atm switches and routers ? sonet/sdh switch infrastructure ? broadband aggregation applications ? metro edge switching ? metro and access multi-service platforms ? suitable for fast ethernet applications related products ? afct-5755z family of oc12 sfp transceivers with dmi ? afct-5745l/p family of oc48 sfp transceivers with dmi
2 text photo-detector amplification & quantization laser laser driver & safety circuit electrical interface rd+ (receive data) rd- (receive data) rx loss of signal mod-def2 (sda) tx_disable td+ (transmit data) td- (transmit data) tx_fault mod-def0 mod-def1 (scl) receiver transmitter optical interface light from fiber light to fiber controller & memory figure 1. transceiver functional diagram general features the afct-576 x z family of sfp optical transceivers are high performance, cost eff ective modules for serial optical data communications applications ranging from 125-155 mbps. they are designed to provide sonet/sdh compliant con- nections for 155 mbps at short and intermediate reach links. this includes specifi cations for the signal coding, optical fi ber and connector types, optical and electrical transmitter characteristics, optical and electrical receiver characteristics, jitter characteristics, and compliance test- ing methodology for the aforementioned. these transceiv- ers are qualifi ed in accordance with gr-468-core. the transmitter section of the sr and ir transceivers incor- porate a 1300nm fabry perot (fp) laser. for each device the receiver section uses an movpe grown planar pin photo- detector for low dark current and excellent responsivity. a positive-ecl logic interface simplifi es interface to external circuitry. the receiver section contains an ingaas/inp photo detector and a preamplifi er mounted in an optical subassembly. this optical subassembly is coupled to a postamplifi er/decision circuit on a circuit board. the afct-576xz family of optical transceivers adds digital diagnostic monitoring to standard sfp functionality, en- abling fault isolation, components monitoring and failure prediction capabilities. sfp msa compliance the product package is compliant with the sfp msa with the lc connector option. the sfp msa includes specifi ca- tions for mechanical packaging and performance as well as dc, ac and control signal timing and performance. the power supply is 3.3 v dc. the high speed i/o (hsio) signal interface is a low voltage diff erential type. it is ac coupled and terminated internally to the module. the internal termination is a 100 ohm dif- ferential load. installation the afct-576 x z can be installed in any sff-8074i compli- ant small form pluggable (sfp) port regardless of host equipment operating status . the module is hot-plug- gable, allowing it to be installed while the host system is operating and online. upon insertion, the transceiver housing makes initial contact with the host board sfp cage, mitigating potential damage due to electrostatic discharge (esd).
3 laser driver & safety circuitry 50 50 so+ so? amplification & quantization 50 50 si+ si? vrefr vrefr tbc ewrap rbc rx_rate rx_los gpio(x) gpio(x) gp14 refclk tx_fault tbc ewrap rbc rx_rate refclk tx[0:9] rx[0:9] tx_fault tx_disable td+ td? tx gnd mod_def2 eeprom mod_def1 mod_def0 rx gnd 4.7 k to 10 k 3.3 v 4.7 k to 10 k 3.3 v 4.7 k to 10 k 4.7 k to 10 k protocol ic sfp module v cc ,t 1 h 1 h 10 f 0.1 f 3.3 v 4.7 k to 10 k 10 f 0.1 f 0.1 f 4.7 k to 10 k rd+ rd? rx_los 0.01 f 0.01 f 100 0.01 f 0.01 f v cc ,r 100 50 v cc ,r 50 v cc ,r transmitter section the transmitter section includes a 1310 nm fabry-perot laser and a transmitter driver circuit. the driver circuit maintains a constant optical power level provided that the data pattern is valid for nrz code. connection to the transmitter is provided via a lc optical connector. the transmitter has full iec 825 and cdrh class 1 eye safety. tx_disable the transmitter output can be disabled by asserting pin 3, tx_disable. a high signal asserts this function while a low signal allows normal laser operation. the transmit- ter output can also be disabled and monitored via the 2-wire serial interface. in the event of a transceiver fault, such as the activation of the eye safety circuit, toggling of the tx_disable will reset the transmitter, as depicted in figure 2. figure 2. typical application confi guration tx_fault a laser fault or a low v cc condition will activate the trans- mitter fault signal, tx_fault, and disable the laser. this signal is an open collector output (pull-up required on the host board); a low signal indicates normal laser op- eration and a high signal indicates a fault. the tx_fault will be latched high when a laser fault occurs and is cleared by toggling the tx_disable input or power cycling the transceiver. the tx_fault is not latched for low v cc . the transmitter fault condition can also be monitored via the two-wire serial interface (address a2, byte 110, bit 2). by default, tx_fault is set to trigger on hardware faults only.
4 figure 3. msa required power supply fi lter v cc t 0.1 f 0.1 f 10 f 1 h 1 h 0.1 f 10 f 3.3 v sfp module v cc r host board receiver section the receiver section for the afct-576 x z contains an ingaas/inp photo detector and a preamplifi er mounted in an optical subassembly. this optical subassembly is coupled to a post amplifi er/decision circuit on a circuit board. the design of the optical subassembly provides better than 12 db optical return loss (orl). connection to the receiver is provided via a lc optical connector. rx_los the receiver section contains a loss of signal (rx_los) circuit to indicate when the optical input signal power is insuffi cient for sonet/sdh compliance. a high signal indicates loss of modulated signal, indicating link failure such as a broken fi ber or a failed transmitter. rx_los can be also be monitored via the two-wire serial (address a2, byte 110, bit 1). functional data i/o avagos afct-576 x z transceiver is designed to accept industry standard diff erential signals. the transceiver pro- vides an ac-coupled, internally terminated data interface. bias resistors and coupling capacitors have been included within the module to reduce the number of components required on the customers board. figure 2 illustrates the recommended interface circuit. digital diagnostic interface and serial identifi cation the afct-576 x z family complies with the sff-8074i spec- ifi cation, which defi nes the modules serial identifi cation protocol to use the 2-wire serial cmos eeprom protocol of the atmel at24c01a or similar. standard sfp eeprom bytes 0-255 are addressed per sff-8074i at memory ad- dress 0xa0 (a0h). as an enhancement to the conventional sfp interface defi ned in sff-8074i, the afct-5765z is also compliant to sff-8472 (the digital diagnostic interface for sfp). this enhancement adds digital diagnostic monitoring to stan- dard sfp functionality, enabling failure prediction, fault isolation, and component monitoring capabilities. using the 2-wire serial interface, the afct-5765z pro- vides real time access to transceiver internal supply volt- age and temperature, transmitter output power, laser bias current and receiver average input power, allowing a host to predict system compliance issues. these fi ve parameters are internally calibrated, per the msa. new digital diagnostic information is accessed per sff-8472 using eeprom bytes 0-255 at memory address 0xa2 (a2h). the digital diagnostic interface also adds the ability to disable the transmitter (tx_disable), monitor for trans- mitter faults (tx_fault) and monitor for receiver loss of signal (rx_los). contents of the msa-compliant serial id memory are shown in tables 3 to 7. the sff-8074i and sff-8472 specifi cations are available from the sff committee at http://www.sff committee.org. the i2c accessible memory page address 0xb0 is used internally by sfp for the test and diagnostic purposes and it is reserved. predictive failure identifi cation the diagnostic information allows the host system to identify potential link problems. once identifi ed, a fail- over technique can be used to isolate and replace sus- pect devices before system uptime is impacted. compliance prediction the real-time diagnostic parameters can be monitored to alert the system when operating limits are exceeded and compliance cannot be ensured. fault isolation the diagnostic information can allow the host to pin- point the location of a link problem and accelerate sys- tem servicing and minimize downtime. component monitoring as part of the host system monitoring, the real time di- agnostic information can be combined with system level monitoring to ensure system reliability. application support an evaluation kit and reference designs are available to assist in evaluation of the afct-576 x z sfps. please con- tact your local field sales representative for availability and ordering details.
5 table 1. regulatory compliance feature test method performance electrostatic discharge (esd) to the electrical pins mil-std-883c method 3015.4 jedec/eia jesd22-a114-a class 2 (2000 volts) electrostatic discharge (esd) to the duplex lc receptacle bellcore gr1089-core 25 kv air discharge 10 zaps at 8 kv (contact discharge) on the electri- cal faceplate on panel. electromagnetic interference (emi) fcc class b applications with high sfp port counts are ex- pected to be compliant; however, margins are de- pendent on customer board and chassis design. immunity variation of iec 61000-4-3 no measurable eff ect from a 10 v/m fi eld swept from 80 to 1000 mhz applied to the transceiver without a chassis enclosure. eye safety us fda cdrh ael class 1 en (iec) 60825-1, 2, en60950 class 1 cdrh accession number: 9521220-137 tuv certifi cate number: 933/21205741/040 component recognition underwriters laboratories and canadian standards association joint component recognition for informa- tion technology equipment including electrical business equipment ul fi le # e173874 rohs compliance reference to eu rohs directive 2002/95/ec operating temperature the afct-576 x z family is available in either extended (-10 to +85c) or industrial (-40 to +85c) temperature ranges. power supply noise the afct-576 x z can withstand an injection of psn on the v cc lines of 100 mv ac without a degradation in eye mask margin to 10% on the transmitter and a 1 db sensitivity penalty on the receiver. this occurs when the product is used in conjunction with the msa recommended power supply fi lter shown in figure 3. regulatory compliance the transceiver regulatory compliance is provided in table 1 as a fi gure of merit to assist the designer. the overall equipment design will determine the certifi cation level.
6 electrostatic discharge (esd) there are two conditions in which immunity to esd dam- age is important: the fi rst condition is static discharge to the transceiver during handling such as when the transceiver is inserted into the transceiver port. to protect the transceiver, it is important to use normal esd handling precautions includ- ing the use of grounded wrist straps, work benches, and fl oor mats in esd controlled areas. the esd sensitivity of the afct-576 x z is compatible with typical industry pro- duction environments. the second condition is static discharge to the exterior of the host equipment chassis after installation. to the extent that the duplex lc optical interface is exposed to the outside of the host equipment chassis, it may be subject to system-level esd requirements. the esd per- formance of the afct-576 x z exceeds typical industry standards. table 1 documents esd immunity to both of these conditions. electromagnetic interference (emi) most equipment designs using the afct-576 x z sfps are subject to the requirements of the fcc in the united states, cenelec en55022 (cispr 22) in europe and vcci in japan. the metal housing and shielded design of the transceiver minimize emi and provide excellent emi per- formance. emi immunity the afct-576 x z transceivers have a shielded design to provide excellent immunity to radio frequency electro- magnetic fi elds which may be present in some operating environments. eye safety the afct-576 x z transceivers provide class 1 eye safety by design. avago technologies has tested the transceiver design for regulatory compliance, under normal operat- ing conditions and under a single fault condition. see table 1. flammability the afct-576 x z family of sfps is compliant to ul 94v-0. customer manufacturing processes this module is pluggable and is not designed for aqueous wash, ir refl ow, or wave soldering processes. caution the afct-576 x z contains no user-serviceable parts. tam- pering with or modifying the performance of the afct- 576 x z will result in voided product warranty. it may also result in improper operation of the transceiver circuitry, and possible over-stress of the laser source. device deg- radation or product failure may result. connection of the afct-576 x z to a non-approved optical source, operating above the recommended absolute maximum conditions may be considered an act of modifying or manufacturing a laser product. the person(s) performing such an act is required by law to re-certify and re-identify the laser product under the provisions of u.s. 21 cf. handling precautions the afct-576 x z can be damaged by current surges or overvoltage. power supply transient precautions should be taken, and normal handling precautions for electro- static sensitive devices should be taken. optical power budget the worst-case optical power budget (opb) in db for a fi ber-optic link is determined by the diff erence between the minimum transmitter output optical power (dbm avg) and the lowest receiver sensitivity (dbm avg). this opb provides the necessary optical signal range to es- tablish a working fi ber-optic link. the opb is allocated for the fi ber-optic cable length and the corresponding link penalties. for proper link performance, all penalties that aff ect the link performance must be accounted for within the link optical power budget. process plug this transceiver is supplied with a process plug for protection of the optical port within the lc connector receptacle. this process plug prevents contamination during handling, shipping and storage. it is made of a high-temperature, molded sealing material that can withstand +85 c. lc sfp cleaning recommendations in the event of contamination of the optical ports, the recommended cleaning process is the use of forced ni- trogen. if contamination is thought to have remained, the optical ports can be cleaned using a ntt international cletop stick type (diam. 1.25 mm) and hfe7100 cleaning fl uid.
7 table 2. pin description pin name function/description msa notes 1 veet transmitter ground 2 tx fault transmitter fault indication note 1 3 tx disable transmitter disable - module disables on high or open note 2 4 mod-def2 module defi nition 2 - two wire serial id interface note 3 5 mod-def1 module defi nition 1 - two wire serial id interface note 3 6 mod-def0 module defi nition 0 - grounded in module note 3 7 rate select not connected 8 los loss of signal note 4 9 veer receiver ground 10 veer receiver ground 11 veer receiver ground 12 rd- inverse received data out note 5 13 rd+ received data out note 5 14 veer receiver ground 15 vccr receiver power - 3.3 v 5% note 6 16 vcct transmitter power - 3.3 v 5% note 6 17 veet transmitter ground 18 td+ transmitter data in note 7 19 td- inverse transmitter data in note 7 20 veet transmitter ground notes: 1. tx fault is an open collector/drain output, which should be pulled up with a 4.7k C 10k ? resistor on the host board. pull up voltage between 2.0 v and vcct, r+0.3 v. when high, output indicates a laser fault of some kind. low indicates normal operation. in the low st ate, the output will be pulled to < 0.8 v. by default, tx_fault is set to trigger on hardware faults only. 2. tx disable input is used to shut down the laser output per the state table below with an external 4.7 - 10 k ? pull-up resistor. low (0 - 0.8 v): transmitter on between (0.8 v and 2.0 v): undefi ned high (2.0 - 3.465 v): transmitter disabled open: transmitter disabled 3. mod-def 0,1,2. these are the module defi nition pins. they should be pulled up with a 4.7 - 10 k ? resistor on the host board to a supply less than vcct +0.3 v or vccr+0.3 v. mod-def 0 is grounded by the module to indicate that the module is present mod-def 1 is clock line of two wire serial interface for optional serial id mod-def 2 is data line of two wire serial interface for optional serial id 4. los (loss of signal) is an open collector/drain output which should be pulled up externally with a 4.7k - 10 k ? resistor on the host board to a supply < vcct,r+0.3 v. when high, this output indicates the received optical power is below the worst case receiver sensitivity (as defi ned by the standard in use). low indicates normal operation. in the low state, the output will be pulled to < 0.8 v. 5. rd-/+: these are the diff erential receiver outputs. they are ac coupled 100 ? diff erential lines which should be terminated with 100 ? diff erential at the user serdes. the ac coupling is done inside the module and is thus not required on the host board. the voltage swing on these lines will be between 320 and 2000 mv diff erential (160 - 1000 mv single ended) when properly terminated. 6. vccr and vcct are the receiver and transmitter power supplies. they are defi ned as 3.135 - 3.465 v at the sfp connector pin. the maximum sup- ply current is 250 ma and the associated inrush current will be no more than 30 ma above steady state after 500 nanoseconds. 7. td-/+: these are the diff erential transmitter inputs. they are ac coupled diff erential lines with 100 ? diff erential termination inside the module. the ac coupling is done inside the module and is thus not required on the host board. the inputs will accept diff erential swings of 500 - 2400 mv (250 - 1200 mv single ended), though it is recommended that values between 500 and 1200 mv diff erential (250 - 600 mv single ended) be used for best emi performance.
8 table 3. eeprom serial id memory contents - address a0h byte #decimal data hex notes byte #decimal data hex notes byte #decimal data hex notes 0 03 sfp physical device 27 20 54 20 1 04 sfp function defi ned by serial id only 28 20 55 20 2 07 lc optical connector 29 20 56 30 300 3020 5730 4 table 4 sonet reach specifi er 31 20 58 31 5 table 4 sonet compliance code 32 20 59 30 6 00 33 20 60 table 4 7 00 34 20 61 table 4 800 3520 6200 9 00 36 00 63 checksum for bytes 0-62 3 10 00 37 00 hex byte of vendor oui 1 64 00 11 05 sonet scrambled 38 17 hex byte of vendor oui 1 65 1a hardware sfp tx_disable, tx_fault & rx_los 12 02 155 mbit/sec nominal bit rate 39 6a hex byte of vendor oui 1 66 00 upper bit rate margin 13 00 40 41 a 67 00 lower bit rate margin 14 table 4 link length 9 m in km 41 46 f 68-83 vendor specifi c serial number ascii char- acters 4 15 table 4 link length 9 m in m 42 43 c 84-91 vendor date code ascii characters 5 16 00 43 54 t 92 table 4 17 00 44 2d - 93 table 4 18 00 45 35 5 94 table 4 19 00 46 37 7 95 checksum for bytes 64-94 3 20 41 a 47 36 6 96-127 00 vendor specifi c eeprom 21 56 v 48 table 4 128-255 00 reserved 22 41 a 49 table 4 23 47 g 50 table 4 24 4f o 51 table 4 25 20 52 table 4 26 20 53 20 notes: 1. the ieee organizationally unique identifi er (oui) assigned to avago is 00-17-6a (3 bytes of hex). 2. laser wavelength is represented in 16 unsigned bits. 3. addresses 63 and 95 are checksums calculated (per sff-8472 and sff-8074) and stored prior to product shipment. 4. addresses 68-83 specify the ascii serial number and will vary on a per unit basis. 5. addresses 84-91 specify the ascii date code and will vary on a per date code basis.
9 table 4a. individual identifi ers afct-5760lz afct-5760pz afct-5760tlz AFCT-5760TPZ byte # hex notes hex notes hex notes hex notes 4 10 sr-1 10 sr-1 10 ir-1 10 ir-1 5 01 oc-3 sr-1 01 oc-3 sr-1 02 oc-3 ir-1 02 oc-3 ir-1 14 02 2 km 02 2 km 0f 15 km 0f 15 km 15 14 2000m 14 2000m 96 15000m 96 15000m 48 30 0 30 0 30 0 30 0 49 4c l 50 p 54 t 54 t 50 5a z 5a z 4c l 50 p 51 20 - 20 - 5a z 5a z 52 20 - 20 - 20 - 20 - 60 05 1310nm 05 1310nm 05 1310nm 05 1310nm 61 1e 1e 1e 1e 92 00 00 00 00 93 00 00 00 00 94 00 00 00 00 afct-5760alz afct-5760apz afct-5760atlz afct-5760atpz byte # hex notes hex notes hex notes hex notes 4 10 sr-1 10 sr-1 10 ir-1 10 ir-1 5 01 oc-3 sr-1 01 oc-3 sr-1 02 oc-3 ir-1 02 oc-3 ir-1 14 02 2 km 02 2 km 0f 15 km 0f 15 km 15 14 2000m 14 2000m 96 15000m 96 15000m 48 30 0 30 0 30 0 30 0 49 41 a 41 a 41 a 41 a 50 4c l 50 p 54 t 54 t 51 5a z 5a z 4c l 50 p 52 20 - 20 - 5a z 5a z 60 05 1310nm 05 1310nm 05 1310nm 05 1310nm 61 1e 1e 1e 1e 92 00 00 00 00 93 00 00 00 00 94 00 00 00 00
10 table 4b. individual identifi ers afct-5765lz afct-5765pz afct-5765tlz afct-5765tpz byte # hex notes hex notes hex notes hex notes 4 10 sr-1 10 sr-1 10 ir-1 10 ir-1 5 01 oc-3 sr-1 01 oc-3 sr-1 02 oc-3 ir-1 02 oc-3 ir-1 14 02 2 km 02 2 km 0f 15 km 0f 15 km 15 14 2000m 14 2000m 96 15000m 96 15000m 48 35 5 35 5 35 5 35 5 49 4c l 50 p 54 t 54 t 50 5a z 5a z 4c l 50 p 51 20 - 20 - 5a z 5a z 52 20 - 20 - 20 -20- 60 05 1310nm 05 1310nm 05 1310nm 05 1310nm 61 1e 1e 1e 1e 92 68 68 68 68 93 f0 f0 f0 f0 94 01 01 01 01 afct-5765alz afct-5765apz afct-5765atlz afct-5765atpz byte # hex notes hex notes hex notes hex notes 4 10 sr-1 10 sr-1 10 ir-1 10 ir-1 501 oc-3 sr-1 01 oc-3 sr-1 02 oc-3 ir-1 02 oc-3 ir-1 14 02 2 km 02 2 km 0f 15 km 0f 15 km 15 14 2000m 14 2000m 96 15000m 96 15000m 48 35 5 35 5 35 5 35 5 49 41 a 41 a 41 a 41 a 50 4c l 50 p 54 t 54 t 51 5a z 5a z 4c l 50 p 52 20 - 20 - 5a z 5a z 60 05 1310nm 05 1310nm 05 1310nm 05 1310nm 61 1e 1e 1e 1e 92 68 68 68 68 93 f0 f0 f0 f0 94 01 01 01 01
11 table 5. eeprom serial id memory contents - address a2h (afct-5765z family only) byte # decimal notes byte # decimal notes byte # decimal notes 0 temp h alarm msb 1 26 tx pwr l alarm msb 4 104 real time rx p av msb 5 1 temp h alarm lsb 1 27 tx pwr l alarm lsb 4 105 real time rx p av lsb 5 2 temp l alarm msb 1 28 tx pwr h warning msb 4 106 reserved 3 temp l alarm lsb 1 29 tx pwr h warning lsb 4 107 reserved 4 temp h warning msb 1 30 tx pwr l warning msb 4 108 reserved 5 temp h warning lsb 1 31 tx pwr l warning lsb 4 109 reserved 6 temp l warning msb 1 32 rx pwr h alarm msb 5 110 status/control - see table 6 7 temp l warning lsb 1 33 rx pwr h alarm lsb 5 111 reserved 8v cc h alarm msb 2 34 rx pwr l alarm msb 5 112 flag bits - see table 7 9v cc h alarm lsb 2 35 rx pwr l alarm lsb 5 113 flag bit - see table 7 10 v cc l alarm msb 2 36 rx pwr h warning msb 5 114 reserved 11 v cc l alarm lsb 2 37 rx pwr h warning lsb 5 115 reserved 12 v cc h warning msb 2 38 rx pwr l warning msb 5 116 flag bits - see table 7 13 v cc h warning lsb 2 39 rx pwr l warning lsb 5 117 flag bits - see table 7 14 v cc l warning msb 2 40-55 reserved 118 reserved 15 v cc l warning lsb 2 56-94 external calibration con- stants 6 119 reserved 16 tx bias h alarm msb 3 95 checksum for bytes 0-94 7 120-122 reserved 17 tx bias h alarm lsb 3 96 real time temperature msb 1 123 18 tx bias l alarm msb 3 97 real time temperature lsb 1 124 19 tx bias l alarm lsb 3 98 real time vcc msb 2 125 20 tx bias h warning msb 3 99 real time vcc lsb 2 126 21 tx bias h warning lsb 3 100 real time tx bias msb 3 127 reserved 8 22 tx bias l warning msb 3 101 real time tx bias lsb 3 128-247 customer writable 9 23 tx bias l warning lsb 3 102 real time tx power msb 4 248-254 vendor specifi c 24 tx pwr h alarm msb 4 103 real time tx power lsb 4 255 25 tx pwr h alarm lsb 4 notes : 1. temperature (temp) is decoded as a 16 bit sig ned twos compliment integer in increments of 1/256 c. 2. supply voltage (v cc) is decoded as a 16 bit unsigned integer in increments of 100 v. 3. laser bias current (tx bias) is decoded as a 16 bit unsigned integer in increments of 2 a. 4. transmitted average optical power (tx pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 w. 5. received average optical power (rx pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 w. 6. bytes 55-94 are not intended from use with afct-5765xxxx, but have been set to default values per sff-8472. 7. bytes 95 is a checksum calculated (per sff-8472) and stored prior to product shipment. 8. byte 127 accepts a write but performs no action (reserved legacy byte). 9. bytes 128-247 are write enabled (customer writable). 10. byte 255 bits 2 and 3 control laser margining (per table 7) when an enabling password is entered into bytes 123-126.
12 table 6. eeprom serial id memory contents - address a2h, byte 110 (afct-5765z family only) bit # status/control name description 7 tx disable state digital state of sfp tx disable input pin (1 = tx_ disable asserted) 6 soft tx disable read/write bit for changing digital state of sfp tx_disable function 1 5 reserved 4 rx rate select state digital state of sfp rate select input pin (1 = full bandwidth of 155 mbit) 2 3 reserved 2 tx fault state digital state of the sfp tx fault output pin (1 = tx fault asserted) 3 1 rx los state digital state of the sfp los output pin (1 = los asserted) 0 data ready (bar) indicates transceiver is powered and real time sense data is ready (0 = ready) notes: 1. bit 6 is logic ord with the sfp tx_disable input pin 3 ... either asserted will disable the sfp transmitter. 2. afct-5765z does not respond to state changes on rate select input pin. it is internally hardwired to full bandwidth. 3. by default, tx_fault is set to trigger on hardware faults only. table 7. eeprom serial id memory contents - address a2h, bytes 112, 113, 116, 117 (afct-5765z family only) byte bit # flag bit name description 112 7 temp high alarm set when transceiver nternal temperature exceeds high alarm threshold. 6 temp low alarm set when transceiver internal temperature exceeds alarm threshold. 5v cc high alarm set when transceiver internal supply voltage exceeds high alarm threshold. 4v cc low alarm set when transceiver internal supply voltage exceeds low alarm threshold. 3 tx bias high alarm set when transceiver laser bias current exceeds high alarm threshold. 2 tx bias low alarm set when transceiver laser bias current exceeds low alarm threshold. 1 tx power high alarm set when transmitted average optical power exceeds high alarm threshold. 0 tx power low alarm set when transmitted average optical power exceeds low alarm threshold. 113 7 rx power high alarm set when received p_avg optical power exceeds high alarm threshold. 6 rx power low alarm set when received p_avg optical power exceeds low alarm threshold. 0-5 reserved 116 7 temp high warning set when transceiver internal temperature exceeds high warning threshold. 6 temp low warning set when transceiver internal temperature exceeds low warning threshold. 5v cc high warning set when transceiver internal supply voltage exceeds high warning threshold. 4v cc low warning set when transceiver internal supply voltage exceeds low warning threshold. 3 tx bias high warning set when transceiver laser bias current exceeds high warning threshold. 2 tx bias low warning set when transceiver laser bias current exceeds low warning threshold. 1 tx power high warning set when transmitted average optical power exceeds high warning threshold. 0 tx power low warning set when transmitted average optical power exceeds low warning threshold. 117 7 rx power high warning set when received p_avg optical power exceeds high warning threshold. 9 rx power low warning set when received p_avg optical power exceeds low warning threshold. 0-5 reserved
13 optical parameters absolute maximum ratings absolute maximum ratings are those values beyond which functional performance is not intended, device reliability is not im- plied, and damage to the device may occur. parameter symbol minimum maximum unit notes storage temperature (non-operating) t s -40 +85 c relative humidity rh 0 85 % supply voltage v cc -0.5 3.63 v input voltage on any pin v i -0.5 v cc v receiver optical input p in abs 0 dbm recommended multirate operating conditions typical operating conditions are those values for which functional performance and device reliability is implied. parameter symbol minimum typical maximum unit notes case operating temperature afct-576xlz/pz/tlz/tpz afct-576xalz/apz/atlz/atpz t c t c -10 -40 +85 +85 c c supply voltage v cc 3.1 3.3 3.5 v transceiver electrical characteristics for multirate operations at fast ethernet (125 mbit/s) and oc-3 (155 mbit/s) *6 parameter symbol minimum typical maximum unit notes module supply current i cct 250 ma 1 power dissipation p diss 875 mw ac electrical characteristics power supply noise rejection psnr 100 mv 2 in-rush current 30 ma dc electrical characteristics signal outputs: transmit fault (tx_fault) loss of signal (los) v oh 2.0 3.5 v 3 v ol 0 0.8 v signal inputs: transmitter disable (tx_disable mod-def1, 2 v ih 2.0 3.5 v 6 v il 0 0.8 v data input: transmitter single ended input voltage (td) v i 250 1200 mv 4 data ouput: receiver single ended output voltage (rd) v o 160 1000 mv 5 notes: 1. msa gives max current at 300 ma. 2. msa fi lter is required on host board 10 hz to 2 mhz. 3. lvttl, external 4.7-10 k ? pull up resistor required on host board to voltage less than vcc + 0.3 v. 4. internally ac coupled and terminated (100 ? diff erential). 5. internally ac coupled and load termination located at the user serdes. 6. minimum input to mod-def1,2 is 0.7*v cc
14 transmitter optical characteristics for multirate operations at fast ethernet (125 mbit/s) and oc-3 (155 mbit/s) parameter symbol minimum typical* maximum unit notes optical output power afct-576xlz/pz/alz/apz p out -15 -8 dbm 1 afct-576xtlz/tpz/atlz/atpz p out -15 -8 dbm 1 center wavelength ? c 1270 1360 nm spectral width - rms afct-576xlz/pz/alz/apz ? 40 nm 2 afct-576xtlz/tpz/atlz/atpz ? 7.7 nm 2 optical rise time t r 2.5 ns 3 optical fall time t f 2.5 ns 3 tx disable off power p off -45 dbm extinction ratio afct-576xlz/pz/alz/apz er 8.2 db afct-576xtlz/tpz/atlz/atpz er 8.2 db eye mask margin emm 30 % 4 jitter generation pk to pk 70 mui 5 rms 7 mui 5 *typicals indicated expected values for room temperature measurements +25 c notes: 1. the output power is coupled into a 1 m single mode fi ber. minimum output optical level is at end of life 2. the relationship between fwhm and rms values for spectral width can derived from the gaussian shaped spectrum which results in rms=fwhm/2.35 3. these are unfi ltered 20-80% values. 4. 30% margin to eye mask in telcordia gr-253-core and itu-t g.957 5. jitter measurements taken with avago omniber 718 in accordance with gr253 receiver optical characteristics for multirate operations at fast ethernet (125 mbit/s) and oc-3 (155 mbit/s) notes: parameter symbol minimum typical maximum unit notes receiver sensitivity afct-576xlz/pz/alz/apz p in min -23 dbm 1 afct-576xtlz/tpz/atlz/atpz p in min -31 dbm 1 receiver overload p in max -8 dbm input operating wavelength ? 1261 1360 nm los deassert afct-576xlz/pz/alz/apz p losd -23.5 dbm afct-576xtlz/tpz/atlz/atpz p losd -31.5 dbm los assert p losa -45 dbm los hysteresis p h 0.5 4 db 1. the receiver is guaranteed to provide output data with a bit error rate better than or equal to 1 x 10 -10 measured with tx powered and carrying data.
15 transceiver digital diagnostic monitor (real time sense) characteristics (afct-5765z family only) parameter symbol min. typ. max. unit reference transceiver internal temperature accuracy t int -3.0 +3.0 c 1 transceiver internal supply voltage accuracy v int -3.0 +3.0 % 2 transmitter laser dc bias current accuracy i int -10 +10 % 3 transmitted average optical output power accuracy p t -3.0 +3.0 db received average optical input power accuracy p r -3.0 +3.0 db notes: 1. temperature was measured internal to the transceiver . valid from = -10 c to +85 c or from -40c to +85c. for calibration to an external temperature, please contact avago technologies. 2. reference voltage is 3.3 v. 3. valid from 0 to 50 ma, avg. notes: 1. time from rising edge of tx_disable to when the optical output falls below 10% of nominal. 2. time from falling edge of tx_disable to when the modulated optical output rises above 90% of nominal. 3. time from power on or falling edge of tx_disable to when the modulated optical output rises above 90% of nominal. 4. from power on or negation of tx_fault using tx_disable. 5. time tx_disable must be held high to reset the laser fault shutdown circuitry. 6. time from loss of optical signal to rx_los assertion. 7. time from valid optical signal to rx_los de-assertion. 8. time from two-wire interface assertion of tx_disable (a2h, byte 110, bit 6) to when the optical output falls below 10% of no minal. measured from falling clock edge after stop bit of write transaction. 9. time from two-wire interface de-assertion of tx_disable (a2h, byte 110, bit 6) to when the modulated optical output rises ab ove 90% of nominal. 10. time from fault to two-wire interface tx_fault (a2h, byte 110, bit 2) asserted. 11. time for two-wire interface assertion of rx_los (a2h, byte 110, bit 1) from loss of optical signal. 12. time for two-wire interface de-assertion of rx_los (a2h, byte 110, bit 1) from presence of valid optical signal. 13. from power on to data ready bit asserted (a2h, byte 110, bit 0). data ready indicates analog monitoring circuitry is functi onal. 14. time from power on until module is ready for data transmission over the serial bus (reads or writes over a0h and a2h). 15. time from stop bit to completion of a 1-8 byte write command. parameter symbol minimum maximum unit notes hardware tx_disable assert time t_off 10 ms note 1 hardware tx_disable negate time t_on 1 ms note 2 t ime to initialize, including reset of tx_fault t_init 300 ms note 3 hardware tx_fault assert time t_fault 100 ms note 4 hardware tx_disable to reset t_reset 10 ms note 5 hardware rx_los assert time t_loss_on 100 ms note 6 hardware rx_los de-assert time t_loss_off 100 ms note 7 software tx_disable assert time t_off_soft 100 ms note 8 software tx_disable negate time t_on_soft 100 ms note 9 software tx_fault assert time t_fault_soft 100 ms note 10 software rx_los assert time t_loss_on_soft 100 ms note 11 software rx_los de-assert time t_loss_off_soft 100 ms note 12 analog parameter data ready t_data 1000 ms note 13 serial bus hardware ready t_serial 300 ms note 14 write cycle time t_write 10 ms note 15 serial id clock rate f_serial_clock 400 khz transceiver timing characteristics
16 tx_fault v cc > 3.15 v t_init tx_disable transmitted signal t_init tx_fault v cc > 3.15 v tx_disable transmitted signal t-init: tx disable negated t-init: tx disable asserted tx_fault v cc > 3.15 v t_init tx_disable transmitted signal t_off tx_fault tx_disable transmitted signal t-init: tx disable negated, module hot plugged t-off & t-on: tx disable asserted then negated insertion t_on tx_fault occurance of fault t_fault tx_disable transmitted signal tx_fault occurance of fault tx_disable transmitted signal t-fault: tx fault asserted, tx signal not recovered t-reset: tx disable asserted then negated, tx signal recovered t_reset t_init* * cannot read input... tx_fault occurance of fault t_fault tx_disable transmitted signal optical signal los t-fault: tx disable asserted then negated, tx signal not recovered t-loss-on & t-loss-off t_loss_on t_init* t_reset * sfp shall clear tx_fault in t_init if the failure is transient t_loss_off occurance of loss figure 5. timing diagrams
17 notes: 1. bail delatch is colored blue for sonet/single-mode identifi cation. avago afct-576xz ### nm laser prod 21cfr(j) class 1 country of origin yyww ###### figure 6. module drawing
18 figure 7. assembly drawing
19 figure 8. sfp host board mechnical layout
for product information and a complete list of distributors, please go to our web site: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies in the united states and other countries. data subject to change. copyright ? 2005-2012 avago technologies. all rights reserved. obsoletes av01-0510en av02-0136en - september 12, 2012 ordering information please contact your local fi eld sales engineer or one of avago technologies franchised distributors for ordering infor- mation. for technical information, please visit avago technologies web-page at www.avagotech.com or contact one of avago technologies regional technical response centers. for information related to sff committee documentation, visit www.sff committee.org . 1300nm fp laser (operating case temperature -10 to +85 c) with dmi afct-5765lz sr standard de-latch (2 km) afct-5765pz sr bail de-latch (2 km) afct-5765tlz ir standard de-latch (15 km) afct-5765tpz ir bail de-latch (15 km) without dmi afct-5760lz sr standard de-latch (2 km) afct-5760pz sr bail de-latch (2 km) afct-5760tlz ir standard de-latch (15 km) AFCT-5760TPZ ir bail de-latch (15 km) 1300nm fp laser (operating case temperature -40 to +85 c) with dmi afct-5765alz sr standard de-latch (2 km) afct-5765apz sr bail de-latch (2 km) afct-5765atlz ir standard de-latch (15 km) afct-5765atpz ir bail de-latch (15 km) without dmi afct-5760alz sr standard de-latch (2 km) afct-5760apz sr bail de-latch (2 km) afct-5760atlz ir standard de-latch (15 km) afct-5760atpz ir bail de-latch (15 km) eeprom content and / or label options afct-5760 xxxx-yyy afct-5765 xxxx-yyy where xxxx ref ers to product option yyy is customer specifi c

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